Apparatus for charging and drawing furnaces



No Model.) 2 Sheets-Sheet 1. S. T. WELLMAN.

APPARATUS FOR CHARGING AND DRAWING FURNACES. No. 394,420. Patented Dec.11, 1888.

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APPARATUS FOR CHARGING AND DRAWING FURNACES. No. 394,420. 1858.

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A TTOANE KS UNITED STATES PATENT OFFICE.

SAMUEL i. l/VELLMAN, OF CLEVELAND, OHIO.

APPARATUS FOR CHARGING AND DRAWING FURNACES.

SPECIFICATION forming part of Letters Patent No. 394,420, dated December11, 1888.

Application tiled July 31, 1888- Serial No. 281,576. (No model.)

To all whom it may concern.-

Be it known that, I, SAMUEL 'l. WELLMAN, of Cleveland, in the county ofCuyahoga and State of Ohio, have invented certain new and usefulImprovements in Apparatus for Charging and Drawing Furnaces; and I dohereby declare the following to be a full, clear, and exact descriptionot the invention, such as will enable others skilled in the art to whichit pertains to make and use the same.

l\jly invention relates to improvements in apparatus for charging anddrawing furnaces; and it consists in certain features of construction,and in combination of parts hereinafter described, and pointed out inthe claims.

In a previous application for Letters Patent made byfme, similarapparatus for charging and drawing furnaces was shown and described.

My present invention is designed as an improvementon the same, theobject being to simplify and reduce the initial cost thereof.

In the accompanying drawings, Figure 1 is a side elevation. 2 and 3 arerespectively front and rear end elevations. Fig. 4 is a plan in detailof the tongs. Fig. 5 is a front end elevation of the tongs, showing aningot in section between the jaws of the tongs.

A A are widely-separated tracks on which car B travels. The frame-workof this car consists in part of side pieces, 0, of preferably heavychannel-beamsset edgewise, as shown.

'Above is located a tilting frame, D, the same being made, preferably,of eye-beams connected rigidly at the ends thereof. From the rear end offrame D depend hangers D, and connectetl witlrtliese hangers are lateralshaft-s or axles d and d", on which axles are mounted, respectively,wheels (Z and IF, the former wheel traveling on the aforesaidchannel-bars and the latter engaging the under side of. thesechannel-bars. These wheels embrace the channel-bars loosely, by reasonof which frame D may be tilted in a vertical plane the limited distancerequired. The front end of frame D rests on wheels e, these wheels beingmounted on cross-heads E of upright hydraulic ram E. By operating theram the frame is tilted upward, the frame and plunger of the ramdescending by gravity to their normal position when the ram isexhausted.

is a hydraulic cylinder or motor of considerable length. the piston-rodf of which connects with axle (I. ll operating motor F frame D isactuated endwisc. Frame D therefore performs the functions of a tiltingframe and of a traveling frame in elevating and depressing the tongs andin moving the tongs endwise in charging and drawing furnaces. e

In my former device the traveling frame was mounted on the tiltingframe, such construction necessitating two frames in place of the oneframe now used.

The tongs are arranged substantially as described, to wit: The grapplinglevers G, constituting the tongs, are mounted on the forward end of thetilting frame and pivoted thereto at g. The rear section of these leverstrends outward to form inclines, (see Fig. 4,) the diverging sections ofthese levers being embraced by plates H, and the latter being fionnectedwith piston-rod i of hydraulic Inotor I. Studs 71 and h are locatedsubstantially in the position shown in Fig. 4, respectively between andoutside the levers, these studs extending from one plate H to the otherand secured to each. With such arrangement of parts the forward movementof the piston of motor I causes the rear end of the tongs to separate,and con sequeutly causes the forward ends of the tongs to grasp theload.

The reverse movement of the motor causes the front ends of the tongs toseparate and release the load, such load being. for instance, ingots K.The cables L, for moving car B along tracks A, are connected with framesB of the car, by means of which the cables are located overhead and outof the way Thelevers for operating the different motors are located aton, just in front of the operator, as is also the hand-cable, (notshown,) for operating the engines that actuate car B. The water-supplyfor the motors is furnished through hose N, the peculiar arrangement ofhose and the niechanisiufor supporting the same being made the subjectof a separate application for Letters Patent.

The waste-water from the different motors is discharged in commonthrough pipe P. A large tube, R, is located lengthwise of the plantunderneath the car, this tube having a slot, r, for rece' *ing the endof pipe P, or at least receiving the discharge of this pipe; by

which arrangement the'waste-vi'ater may be saved. v t

For light work the: motor might probably be Successfully operatedjbyair, in which case .of course tube R could be dispensed with. \Vhat Iclaim is- 7 'Y 1. In apparatus for charging and drawing furnaces, thecombination, with car having met-a1 side pieces adapted for ways, ortilting" frame pivotally connected with :and adapted to travel on suchside pieces, a hydraulicra-m' for elevating such tilting frame, ahydraulic motor for. reciprocating endwise such tiltingtrauma-substantially asset forth. 2I 'In apparatus for chargingand'drawing furnaces,'the combination, with car having Suitablewalys,oftiltingfmme pivotally' oonnccted'witli and adapted to-t-ravcl onsuch ,ways, hydraulic rain located undersuch frame for tilting theldtteriu a- Yeitical plane, such ram having acrowhead bearing wheels forthe tilting frame to travel on, substantially as frame, andhydraulic'rmn or motors, respectively, for reciprocating or tilting-suchframe,

hydraulic motor for opcning, and closing the as set'fort'h.

Iii testimony whereof I sign thispecification, in the presence of two\vitnossos, this 1st day of May-188$ J SAMUEL "l. WELLMhN.

Witnesses:

CHAS. H. Donna, ALBERT E. LYNCH.

of tongs mounted on .such tilting: frame, and

